CN115247852A

CN115247852A - Workshop space heat radiation structure

Info

Publication number: CN115247852A
Application number: CN202210225589.XA
Authority: CN
Inventors: 黄荣芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-09
Filing date: 2022-03-09
Publication date: 2022-10-28
Anticipated expiration: 2042-03-09
Also published as: CN115247852B

Abstract

The invention provides a workshop space heat dissipation structure, which comprises a first platform, wherein the first end of the first platform is connected with the inner wall surface of a first side wall, the lower half part of the first side wall below the first platform is provided with at least one transversely extending air inlet, the lower half part of a second side wall is provided with at least one transversely extending exhaust port, and the exhaust center height position of the at least one exhaust port is between the center height and the top end height position of the at least one air inlet; a partition plate is positioned between the roof and the first platform, the first end of the partition plate is connected with the inner wall surface of the first side wall, and the length of the partition plate is greater than or equal to 1/2 of the distance between the first side wall and the second side wall; the baffle plate surface is provided with at least one rectangular groove, the length direction of the rectangular groove is parallel to the first side wall, the height of the rectangular groove is H, the width of the short direction of the rectangular groove is L, and H is more than or equal to 0.1L.

Description

Workshop space heat radiation structure

Technical Field

The present invention relates to a heat dissipation structure for factory buildings, and more particularly to a heat dissipation structure for factory buildings, which can be used to dispose a crane or other large equipment as required and effectively dissipate the hot air in the factory buildings.

Background

For small and medium-sized plants with a height of less than 6m, in order to enhance the heat dissipation effect, a plurality of self-rotating fans are generally arranged on the roof of the plant to discharge hot air and keep out rain; or a series of fans are suspended above the workers in the workplace or positioned at a height below the human body in the factory in order to desirably exhaust hot air and blow the human body for heat dissipation. For a large factory building, such as a factory building with a height of 15m, a width of 50m, and a length of 200m, the adopted natural ventilation is that a heightened pseudostellaria root is usually arranged above the factory building, two sides of the pseudostellaria root are respectively provided with an open side window, a working area below the factory building is provided with the side window for air intake, and the roof of the factory building is particularly raised to reduce the influence of roof radiant heat.

However, since the conventional heat dissipation method does not deal with the details of the fluid flow, a large recirculation zone and/or a low velocity zone are easily formed in the chamber, and the concentration of the contaminants in these zones is high; however, the operator is apt to feel almost calm and hot, and thus intuitively handles the problem of increasing the amount of air or the number of fans, but the effect is not good, energy is consumed, noise is increased, and the operator is uncomfortable to be impacted by a high-speed airflow for a long time. Moreover, because the opening area of the side window of the pseudostellaria building or the roof self-rotating fan is insufficient or not well distributed, most hot air in the plant cannot be effectively removed, a large backflow bubble can be formed in the plant, the hot air above the plant is coiled to the working area below the plant, and the temperature of the working area is increased. At this moment, the external air of the factory building is dragged by the buoyancy of the hot air inside the factory building, and after entering the side windows at two sides below the factory building, the air can be quickly turned upwards due to the influence of the large backflow bubbles. Therefore, most areas inside the building are hot and stuffy, except for the cooling sensation of the workers in short distances near the side windows. Even if a large number of fans are used for blowing, hot air is sucked from the back of the fans and then blown out from the front of the fans, and the problems that the temperature of most of the working area below the fans rises, so that the discomfort of operators is caused, the working efficiency is reduced, and even occupational injuries are caused cannot be solved.

Therefore, for example, taiwan invention bulletin No. I659145, "factory building heat dissipation structure" proposes a solution, which is mainly to provide four side walls below a roof having an air outlet, and to arrange a first platform and a second platform in the factory building, wherein the first side wall and the second side wall of the four side walls are parallel to each other, and the lower half parts of the first side wall and the second side wall are respectively provided with an air inlet; the first end of the first platform is connected with the first side wall, and the upper region and the lower region are separated into a first upper reflux region and a first lower working region; the first end of the second platform is connected with the second side wall, and the upper region and the lower region are separated into a second upper reflux region and a second lower working region; and a space is formed between the second end of the first platform and the second end of the second platform. Therefore, air outside the plant can enter the first lower working area and the second lower working area respectively through the two opposite air inlets, hot air flows upwards through the space between the two platforms under the action of thermal buoyancy, and is discharged outwards through the air outlet to dissipate heat.

The interval is formed between the two opposite platforms, the lower half parts of the two side walls respectively connected with the two opposite platforms are respectively provided with a factory building structure with air inlets, although air can be simultaneously introduced from the two air inlets, and the heat dissipation effect is achieved through the action of thermal buoyancy, the structure of the double platforms is more complex, and the placing quantity and the placing position of the crown blocks or other large-scale machines and tools with the height larger than that of the double platforms are greatly limited due to the small interval width between the two platforms; the conventional heat dissipation treatment of the inside of the factory building is performed by increasing the air volume or increasing the number of fans, which not only has poor effect, consumes energy, but also increases noise.

Disclosure of Invention

In view of the above, in order to provide a structure different from the conventional techniques and improve the above-mentioned disadvantages, the inventors have experienced many years and continuously developed and improved the present invention.

In order to achieve the above object, the plant of the present invention includes a roof, and a first side wall, a third side wall, a second side wall and a fourth side wall which are disposed below the roof and are sequentially and continuously disposed, wherein the roof and the side walls together enclose an indoor space, and the first side wall is parallel to the second side wall; the heat dissipation structure of the factory building space mainly comprises a first platform, at least one air inlet and at least one air outlet. The first platform is positioned in the indoor space of the factory building and is provided with a first end and a second end opposite to the first end, the first end of the first platform is connected with the inner wall surface of the first side wall and is used for separating the upper region and the lower region into an upper backflow region and a lower working region, and a gap is formed between the second end of the first platform and the inner wall surface of the second side wall; at least one air inlet is arranged on the lower half part of the first side wall below the first platform in a transversely extending mode; the at least one exhaust port is arranged on the lower half part of the second side wall in a transversely extending mode, and the exhaust center height position of the at least one exhaust port is between the center height position and the top height position of the at least one air inlet, so that cold air is input from the at least one air inlet, and hot air is exhausted from the at least one exhaust port; a partition plate is positioned between the roof and the first platform, the partition plate is provided with a first end and a second end opposite to the first end, the first end of the partition plate is connected with the inner wall surface of the first side wall, and the length of the partition plate is greater than or equal to 1/2 of the distance between the first side wall and the second side wall; the face of the partition board is provided with at least one rectangular groove, the length direction of the rectangular groove is parallel to the first side wall, the height of the rectangular groove is H, the width of the rectangular groove in the short direction is L, and H is larger than or equal to 0.1L.

During implementation, the first platform is provided with a third end and a fourth end opposite to the third end, the third end is connected with the inner wall surface of the third side wall, and the fourth end is connected with the inner wall surface of the fourth side wall.

When in implementation, the invention further comprises a plurality of ventilation openings which are arranged between the partition board and the roof and used for discharging hot air between the partition board and the roof; the partition plate is provided with a first end and a second end opposite to the first end, the first end of the partition plate is connected with the inner wall surface of the first side wall, and the second end of the partition plate is connected with the inner wall surface of the second side wall.

During implementation, the partition board is provided with a first end and a second end opposite to the first end, the first end of the partition board is connected with the inner wall surface of the first side wall, a second interval is arranged between the second end of the partition board and the inner wall surface of the second side wall, and the length of the second interval is smaller than that of the first interval.

During implementation, the partition plate is provided with a third end and a fourth end opposite to the third end, the third end is connected with the inner wall surface of the third side wall, and the fourth end is connected with the inner wall surface of the fourth side wall.

The invention has the advantages that the invention provides a workshop space heat dissipation structure, which can solve the problem that a crown block or other large-scale machines and tools cannot be arranged according to the required position in the conventional workshop; the temperature of most of working areas rises, which causes discomfort for operators, thereby reducing the working efficiency and even causing occupational injury; and increase the air quantity or increase the number of the fan and consume the problem of the energy and increase the noise, and can provide an effective heat-dissipating structure, make the overhead traveling crane or other large-scale machines can dispose according to the actual factory building needs, in order to raise the working efficiency; the temperature of the working area is greatly reduced, so that the operators in the working area can work in a cool and comfortable environment, the working efficiency is improved, and occupational injury caused by a high-temperature environment is avoided; and the heat dissipation airflow can flow smoothly, so that the power consumption is saved, the noise is reduced, and the quality of the operation environment is improved.

For further understanding of the present invention, the following description of the preferred embodiments will be provided for describing the detailed construction of the present invention and the effects achieved by the present invention in conjunction with the accompanying drawings.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of the present invention.

Fig. 2 is a side sectional view of fig. 1.

Fig. 3 is a line graph showing the correlation between the height (H) of the rectangular groove and the width (L) of the rectangular groove in the short direction according to the present invention.

FIG. 4 is a diagram of velocity vector and streamline distribution in x-z section according to the first embodiment of the present invention analyzed and calculated by CFD computer program.

Fig. 5 is a side sectional view of a second embodiment of the present invention.

The reference numbers indicate: 1-a workshop space heat dissipation structure; 2, factory building; 21-roof top; 22-a first side wall; 23-a third side wall; 24-a second side wall; 25-a fourth sidewall; 26-indoor space; 27-a vent; 3-a first platform; 31, 61-first end; 32, 62-second end; 33, 63-third end; 34, 64-fourth end; w1-first interval; w2-second interval; 35-upper reflux zone; 36-lower work area; 4-an air inlet; 5-an exhaust port; h1-exhaust center height of the plurality of exhaust ports; h2-center height of the plurality of gas inlets; h3-the height of the top of the plurality of gas inlets; 6-a separator; 65-rectangular groove; h-the height of the rectangular groove; l-the width of the rectangular groove in the short direction; l1-length of separator; l2-the distance between the first side wall and the second side wall.

Detailed Description

Please refer to fig. 1 and fig. 2, which are diagrams illustrating a heat dissipation structure 1 for a plant space according to a first embodiment of the present invention, and the heat dissipation structure is installed inside a plant 2 and on each wall. The factory building 2 comprises a roof 21, and a first side wall 22, a third side wall 23, a second side wall 24 and a fourth side wall 25 which are arranged below the roof 21 and sequentially and continuously arranged in a surrounding manner, wherein the four side walls are enclosed into a rectangle and enclose an indoor space 26 together with the roof 21, the first side wall 22 and the second side wall 24 are parallel to each other, and the third side wall 23 and the fourth side wall 25 are parallel to each other.

The heat dissipation structure 1 of factory building space of the present invention mainly comprises a first platform 3, a plurality of air inlets 4, a plurality of air outlets 5 and a partition 6. The first platform 3 is horizontally suspended in the indoor space 26 of the factory building 2, the first platform 3 has a first end 31, a second end 32 opposite to the first end 31, a third end 33 and a fourth end 34 opposite to the third end 33, the first end 31 of the first platform 3 is connected to the inner wall surface of the first side wall 22, a first gap W1 is formed between the second end 32 and the inner wall surface of the second side wall 24, the third end 33 is connected to the inner wall surface of the third side wall 23, the fourth end 34 is connected to the inner wall surface of the fourth side wall 25, so as to divide the upper and lower portions of the indoor space 26 into an upper return area 35 and a lower working area 36, and the upper return area 35 is located between the bottom surface of the partition 6 and the top surface of the first platform 3.

The plurality of air inlets 4 transversely extend in a rectangular array shape and are formed in the lower half part of the first side wall 22 below the first platform 3, and the air inlets 4 are openable windows, so that air outside the plant 2 enters the lower working area 36 of the plant 2. In practice, the air inlet 4 may be a single transverse window or two rows of transverse windows, which also allows air outside the plant 2 to enter the indoor space 26 of the plant 2. The plurality of exhaust ports 5 are transversely extended to be opened at the lower half part of the second side wall 24, the exhaust ports 5 are fans, in practice, the exhaust ports 5 can also be transverse air outlets connected with air extraction equipment, and the exhaust center height H1 of the plurality of exhaust ports 5 is between the center height H2 and the top height H3 of the plurality of air inlets 4, that is, the exhaust center height H1 of the plurality of exhaust ports 5 must be higher than the center height H2 of the plurality of air inlets 4 and lower than the top height H3 of the plurality of air inlets 4.

The partition board 6 is positioned between the roof 21 and the first platform 3, the partition board 6 has a first end 61, a second end 62 opposite to the first end 61, a third end 63, and a fourth end 64 opposite to the third end 63, the first end 61 of the partition board 6 is connected with the inner wall surface of the first side wall 22, the second end 62 is connected with the inner wall surface of the second side wall 24, the third end 63 is connected with the inner wall surface of the third side wall 23, and the fourth end 64 is connected with the inner wall surface of the fourth side wall 25. In practice, the partition 6 is a ceiling with a high thermal insulation coefficient, so as to block the downward radiation heat emitted from the roof 21, and prevent the temperature downstream of the lower working area 36 below the partition 6 from rising; a plurality of ventilation openings 27 are further formed on the side wall between the roof 21 and the partition 6 for exhausting the hot air between the roof 21 and the partition 6.

The plate surface of the partition plate 6 is provided with a rectangular groove 65, the height of the rectangular groove 65 is H, the width of the rectangular groove 65 in the short direction is L, and H is more than or equal to 0.1L; the rectangular slot 65 is parallel to the first side wall 22 and the second side wall 24, so that when the top of the overhead traveling crane is accommodated or installed in the rectangular slot 65, the overhead traveling crane can be lifted and hung horizontally along the length of the rectangular slot 65, the running range of the overhead traveling crane is limited in a single block in the plant 2, and in practice, the rectangular slot 65 can be configured in a plurality on the plate surface of the partition board 6 according to actual needs, and is also parallel to the first side wall 22 and the second side wall 24.

Therefore, when workers or machines which can generate heat are distributed in the lower working area 36, cold air outside the factory building 2 is input into the indoor space 26 through the plurality of air inlets 4, and hot air in the indoor space 26 is driven to be exhausted outwards through the plurality of air outlets 5, because the air flow speed generated in the lower working area 36 below the first platform 3 is higher than the flow speed of the upper backflow area 35 on the top surface of the first platform 3, a high-speed area and a low-speed area are respectively formed, a mixed layer which is expanded in a fan shape is formed at the boundary position of the high-speed area and the low-speed area, and the mixed layer can enable hot air above the first platform 3 to form backflow bubbles in the upper backflow area 35 through the obstruction of the first platform 3, and most of the hot air is limited in the upper backflow area 35; the small portion of the hot air above the first platform 3 and the large portion of the hot air in the lower working area 36 will be exhausted from the outside of the factory building 2 through the fast flow of air in the high speed area from the first side wall 22 toward the second side wall 24, so as to reduce the temperature of the lower working area 36. As shown in fig. 2 and 3, the height H of the rectangular groove 65 of the partition board 6 and the range of the width L of the rectangular groove 65 in the short direction are limited, that is, the limit condition that H is greater than or equal to 0.1L is satisfied, so that the length of the backflow bubbles in the rectangular groove 65 approximately reaches the width L of the rectangular groove 65 in the short direction, and thus, the airflow is not deflected too much into the rectangular groove 65, and the airflow velocity in the working area below the rectangular groove 65 is not excessively reduced.

Based on the structure of the first embodiment, the present invention performs simulation tests with the following parameters in a factory building with a height of 15m, a width of 36m and a length of 108m, and performs analysis and calculation with a computer program for Computational Fluid Dynamics (CFD).

Total number of windows (air intakes): 24, 1 column

Distance between upper and lower edges of window(s) intake: 1.8m

Window (air intake) inlet wind speed: 2.48m/s

Length of first stage: 5m

Total number of fans (exhaust ports): 18, 1 columns

Single fan (exhaust) air volume: 700CMM

Single fan (exhaust port) outlet axial wind speed: 10.3m/s

Total air volume of a plurality of fans (exhaust ports): 12600CMM

Height (H) of rectangular groove: 6m, 7m and 8m

Width (L) of rectangular groove in short direction: 50m

The results of the calculations were analyzed by a CFD computer program and the velocity vector and streamline profiles are shown in the x-z section of FIG. 4. Wherein the arrow represents the velocity vector and the curve along the tangential direction of the velocity vector represents the streamline; the velocity vectors and streamlines of the lower working area 36 are shown to be nearly parallel flow from left to right and no recirculation zones or low velocity zones are created. Therefore, when the roof 21 is assigned a temperature of 60 ℃, the temperature inside the roof 21 is assigned a temperature of 60 ℃ and the temperature of the atmosphere is assigned a temperature of 29 ℃, the distribution of the velocity vectors and the streamline can prevent the high-temperature air in the rectangular groove 65 from being curled to the lower working area 36 to maintain the high-speed airflow at the downstream of the lower working area 36, and the airflow temperature of the lower working area 36 below the height of 3 meters above the floor is approximately equal to the atmospheric temperature to effectively reduce the temperature in the lower working area 36.

As shown in fig. 5, a second embodiment of the heat dissipation structure 1 for factory building space of the present invention is different from the first embodiment in that: the first end 61 of the partition board 6 is connected to the inner wall surface of the first side wall 22, a second interval W2 is provided between the second end 62 of the partition board 6 and the inner wall surface of the second side wall 24, and the length of the second interval W2 is smaller than the length of the first interval W1. The length L1 of the partition 6 is greater than or equal to 1/2 of the distance L2 between the first side wall 22 and the second side wall 24, i.e., L1 is greater than or equal to 1/2L2. In practice, the length L1 of the partition 6 is preferably 3/4 of the distance L2 between the first side wall 22 and the second side wall 24. In addition, the indoor space 26 between the roof 21 and the partition 6 is a closed space that does not allow outdoor air to enter, i.e. there is no opening in the plant above the partition 6, so as to prevent the fan from sucking air from the opening above the partition 6 and reduce the amount of air sucked from the window below the partition 6.

Therefore, a small portion of the hot air above the partition 6 and a large portion of the hot air in the lower working area 36 are discharged from the first side wall 22 to the outside of the plant 2 in the direction of the second side wall 24 through the rapid and smooth flow of the heat dissipation air, so as to reduce the temperature of the lower working area 36.

Therefore, the invention has the following advantages:

1. the invention can prevent hot air above the factory building from rolling down to the lower working area through smooth air flow, so that the temperature of the lower working area is greatly reduced, the rotating speed of the exhaust fan can be reduced to save the power consumption, the noise is reduced to improve the quality of the working environment, the operators in the lower working area can work in a cool and comfortable environment to improve the working efficiency, and the occupational injury caused by a high-temperature environment is avoided.

2. The invention can utilize the rectangular slot of the clapboard to accommodate or install the top of the crown block or other large-scale machines, thereby effectively increasing the available space in the factory building. Moreover, since the rectangular grooves can be arranged on the partition board in a plurality, the crown blocks or other large-scale machines can be respectively configured according to actual requirements, so as to improve the working efficiency; moreover, because the height of rectangle groove and the width of rectangle groove direction of shortfall restrict within certain proportion scope, then can effectual take in the produced backward flow bubble of baffle below air current entering rectangle groove, do not lead to letting the air current to go into too much toward rectangle inslot to let the air current of baffle below can be under the condition that does not excessively reduce air current speed, smooth and easy backward flow bubble of crossing rectangle inslot, in order to maintain effectual ventilation cooling effect.

3. For the high factory building, due to the limitation of the effective length of the partition plate, the high large-sized machine can be accommodated and placed through the second spaced open space, so that the available space is increased, the phenomenon of exchange of air flow above and below the partition plate can be avoided, hot air above the partition plate is prevented from rolling down into the lower working area, and the ventilation and heat dissipation effects of the lower working area can be effectively maintained.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A workshop space heat radiation structure comprises a roof, a first side wall, a third side wall, a second side wall and a fourth side wall, wherein the first side wall, the third side wall, the second side wall and the fourth side wall are arranged below the roof and are sequentially and continuously arranged; its characterized in that, this factory building space heat radiation structure includes:

the first platform is positioned in the indoor space of the factory building and provided with a first end and a second end opposite to the first end, the first end of the first platform is connected with the inner wall surface of the first side wall and is used for separating an upper backflow area and a lower working area from an upper area and a lower area, and a first interval is arranged between the second end of the first platform and the inner wall surface of the second side wall;

at least one air inlet which is arranged on the lower half part of the first side wall below the first platform in a transversely extending mode;

at least one exhaust port which is opened on the lower half part of the second side wall in a transverse extending mode, and the exhaust center height position of the at least one exhaust port is between the center height and the top height position of the at least one air inlet, so that cold air is input from the at least one air inlet, and hot air is exhausted from the at least one exhaust port; and

a partition plate positioned between the roof and the first platform, the partition plate having a first end and a second end opposite to the first end, the first end of the partition plate being connected to the inner wall surface of the first side wall, the length of the partition plate being greater than or equal to 1/2 of the distance between the first side wall and the second side wall; the plate surface of the partition plate is provided with at least one rectangular groove, the length direction of any rectangular groove is parallel to the first side wall, the height of the rectangular groove is H, the width of the rectangular groove in the short direction is L, and H is more than or equal to 0.1L.

2. The heat dissipation structure of claim 1, wherein the first platform has a third end and a fourth end opposite to the third end, the third end is connected to the inner wall of the third sidewall, and the fourth end is connected to the inner wall of the fourth sidewall.

3. The heat dissipating structure of claim 1, further comprising a plurality of ventilation openings, which are disposed between the partition and the roof for exhausting hot air between the partition and the roof; the partition board is provided with a first end and a second end opposite to the first end, the first end of the partition board is connected with the inner wall surface of the first side wall, and the second end of the partition board is connected with the inner wall surface of the second side wall.

4. The heat dissipating structure of claim 1, wherein the partition has a first end and a second end opposite to the first end, the first end of the partition is connected to the inner wall of the first sidewall, a second space is provided between the second end of the partition and the inner wall of the second sidewall, and the length of the second space is smaller than the length of the first space.

5. The heat dissipating structure for factory building space according to claim 3 or 4, wherein said partition has a third end and a fourth end opposite to said third end, said third end is connected to the inner wall of said third side wall, and said fourth end is connected to the inner wall of said fourth side wall.